She's Running, but Not Very Well

[NC Tom]

@Pete M@cruiser54@ratrapp@AZJeff and any others I left out, Thank You for your help on this issue. It is yet to be fully resolved, but hearing her start after so many weeks of just turning over and over and over is good news!

 

Running really rough. Fuel pressure is reading a steady 30. I know that's low. However, the fuel leaks are gone.

 

Please take a look at the video here: https://drive.google.com/file/d/1nZjWdUyDUKwCIIibEkfcTge5PbhHD_Yj/view?usp=share_link

 

Anyone should be able to view it. Hopefully, some sort of diagnosis can be made from the sounds, but I understand if not. You may notice smoke coming up from the passenger side of the engine. Not sure what the source is.

 

Looking forward to your comments.

[ratrapp]

by the video,it sounds like an exhaust leak on the manifold but i could be wrong.it kind of sounded like it was trying to idle alittle better as it was running.i think 30 psi may be on the low end of the scale but i think its acceptable.you could try unhooking the injectors 1 at a time and see if it idles worse or stays the same.if it stays the same at least you know which cylinders are giving you problems.you could unplug the spark plug wires one at a time as well but the injectors won't give you a shock.

[NC Tom]

19 minutes ago, ratrapp said:

by the video,it sounds like an exhaust leak on the manifold but i could be wrong.it kind of sounded like it was trying to idle alittle better as it was running.i think 30 psi may be on the low end of the scale but i think its acceptable.you could try unhooking the injectors 1 at a time and see if it idles worse or stays the same.if it stays the same at least you know which cylinders are giving you problems.you could unplug the spark plug wires one at a time as well but the injectors won't give you a shock.

I think you are right about the exhaust leak. I can't find it. For the injectors, I am assuming that you mean to unplug one, listen for changes, plug it back and move to the next one?

[ratrapp]

yes thats exactly what I'm talking about.check the manifold for cracks(pretty common for 4.0).if the manifold gasket itself is leaking it can cause it to run rough being the exhaust and intake share the same gasket.i have a smoke machine i bought off of amazon.its the autool brand i think.i wasted money before buying a pos one off of ebay that is made from an old paint sprayer that was a waste of money.the smoke machine is invaluable for finding exhaust and vacuum leaks.

[NC Tom]

28 minutes ago, ratrapp said:

yes thats exactly what I'm talking about.check the manifold for cracks(pretty common for 4.0).if the manifold gasket itself is leaking it can cause it to run rough being the exhaust and intake share the same gasket.i have a smoke machine i bought off of amazon.its the autool brand i think.i wasted money before buying a pos one off of ebay that is made from an old paint sprayer that was a waste of money.the smoke machine is invaluable for finding exhaust and vacuum leaks.

Someone told me I could use a colored smoke bomb. 

[ratrapp]

i havent heard of people doing that before but its possible .it could work.you could check into that.i like the smoke machine because it pumps smoke into the system.ive seen people you shop vacs flipped in reverse to check for exhaust leaks using soap and water mixed in a squirt bottle.it may be a little more difficult to find vacuum leaks with this method.